1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer 7 * Copyright (C) 2005 Maciej W. Rozycki 8 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) 9 * Copyright (C) 2012, 2013 MIPS Technologies, Inc. All rights reserved. 10 */ 11 12 #ifndef __ASM_UASM_H 13 #define __ASM_UASM_H 14 15 #include <linux/types.h> 16 17 #ifdef CONFIG_EXPORT_UASM 18 #include <linux/export.h> 19 #define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym) 20 #else 21 #define UASM_EXPORT_SYMBOL(sym) 22 #endif 23 24 #define Ip_u1u2u3(op) \ 25 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 26 27 #define Ip_u2u1u3(op) \ 28 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 29 30 #define Ip_u3u2u1(op) \ 31 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 32 33 #define Ip_u3u1u2(op) \ 34 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 35 36 #define Ip_u1u2s3(op) \ 37 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 38 39 #define Ip_u2s3u1(op) \ 40 void uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) 41 42 #define Ip_s3s1s2(op) \ 43 void uasm_i##op(u32 **buf, int a, int b, int c) 44 45 #define Ip_u2u1s3(op) \ 46 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 47 48 #define Ip_u2u1msbu3(op) \ 49 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \ 50 unsigned int d) 51 52 #define Ip_u1u2(op) \ 53 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b) 54 55 #define Ip_u2u1(op) \ 56 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b) 57 58 #define Ip_u1s2(op) \ 59 void uasm_i##op(u32 **buf, unsigned int a, signed int b) 60 61 #define Ip_u1(op) void uasm_i##op(u32 **buf, unsigned int a) 62 63 #define Ip_0(op) void uasm_i##op(u32 **buf) 64 65 Ip_u2u1s3(_addiu); 66 Ip_u3u1u2(_addu); 67 Ip_u3u1u2(_and); 68 Ip_u2u1u3(_andi); 69 Ip_u1u2s3(_bbit0); 70 Ip_u1u2s3(_bbit1); 71 Ip_u1u2s3(_beq); 72 Ip_u1u2s3(_beql); 73 Ip_u1s2(_bgez); 74 Ip_u1s2(_bgezl); 75 Ip_u1s2(_bgtz); 76 Ip_u1s2(_blez); 77 Ip_u1s2(_bltz); 78 Ip_u1s2(_bltzl); 79 Ip_u1u2s3(_bne); 80 Ip_u1(_break); 81 Ip_u2s3u1(_cache); 82 Ip_u1u2(_cfc1); 83 Ip_u2u1(_cfcmsa); 84 Ip_u1u2(_ctc1); 85 Ip_u2u1(_ctcmsa); 86 Ip_u2u1s3(_daddiu); 87 Ip_u3u1u2(_daddu); 88 Ip_u1u2(_ddivu); 89 Ip_u1(_di); 90 Ip_u2u1msbu3(_dins); 91 Ip_u2u1msbu3(_dinsm); 92 Ip_u2u1msbu3(_dinsu); 93 Ip_u1u2(_divu); 94 Ip_u1u2u3(_dmfc0); 95 Ip_u1u2u3(_dmtc0); 96 Ip_u1u2(_dmultu); 97 Ip_u2u1u3(_drotr); 98 Ip_u2u1u3(_drotr32); 99 Ip_u2u1(_dsbh); 100 Ip_u2u1(_dshd); 101 Ip_u2u1u3(_dsll); 102 Ip_u2u1u3(_dsll32); 103 Ip_u3u2u1(_dsllv); 104 Ip_u2u1u3(_dsra); 105 Ip_u2u1u3(_dsra32); 106 Ip_u3u2u1(_dsrav); 107 Ip_u2u1u3(_dsrl); 108 Ip_u2u1u3(_dsrl32); 109 Ip_u3u2u1(_dsrlv); 110 Ip_u3u1u2(_dsubu); 111 Ip_0(_eret); 112 Ip_u2u1msbu3(_ext); 113 Ip_u2u1msbu3(_ins); 114 Ip_u1(_j); 115 Ip_u1(_jal); 116 Ip_u2u1(_jalr); 117 Ip_u1(_jr); 118 Ip_u2s3u1(_lb); 119 Ip_u2s3u1(_lbu); 120 Ip_u2s3u1(_ld); 121 Ip_u3u1u2(_ldx); 122 Ip_u2s3u1(_lh); 123 Ip_u2s3u1(_lhu); 124 Ip_u2s3u1(_ll); 125 Ip_u2s3u1(_lld); 126 Ip_u1s2(_lui); 127 Ip_u2s3u1(_lw); 128 Ip_u2s3u1(_lwu); 129 Ip_u3u1u2(_lwx); 130 Ip_u1u2u3(_mfc0); 131 Ip_u1u2u3(_mfhc0); 132 Ip_u1(_mfhi); 133 Ip_u1(_mflo); 134 Ip_u3u1u2(_movn); 135 Ip_u3u1u2(_movz); 136 Ip_u1u2u3(_mtc0); 137 Ip_u1u2u3(_mthc0); 138 Ip_u1(_mthi); 139 Ip_u1(_mtlo); 140 Ip_u3u1u2(_mul); 141 Ip_u1u2(_multu); 142 Ip_u3u1u2(_nor); 143 Ip_u3u1u2(_or); 144 Ip_u2u1u3(_ori); 145 Ip_u2s3u1(_pref); 146 Ip_0(_rfe); 147 Ip_u2u1u3(_rotr); 148 Ip_u2s3u1(_sb); 149 Ip_u2s3u1(_sc); 150 Ip_u2s3u1(_scd); 151 Ip_u2s3u1(_sd); 152 Ip_u2s3u1(_sh); 153 Ip_u2u1u3(_sll); 154 Ip_u3u2u1(_sllv); 155 Ip_s3s1s2(_slt); 156 Ip_u2u1s3(_slti); 157 Ip_u2u1s3(_sltiu); 158 Ip_u3u1u2(_sltu); 159 Ip_u2u1u3(_sra); 160 Ip_u3u2u1(_srav); 161 Ip_u2u1u3(_srl); 162 Ip_u3u2u1(_srlv); 163 Ip_u3u1u2(_subu); 164 Ip_u2s3u1(_sw); 165 Ip_u1(_sync); 166 Ip_u1(_syscall); 167 Ip_0(_tlbp); 168 Ip_0(_tlbr); 169 Ip_0(_tlbwi); 170 Ip_0(_tlbwr); 171 Ip_u1(_wait); 172 Ip_u2u1(_wsbh); 173 Ip_u3u1u2(_xor); 174 Ip_u2u1u3(_xori); 175 Ip_u2u1(_yield); 176 Ip_u1u2(_ldpte); 177 Ip_u2u1u3(_lddir); 178 179 /* Handle labels. */ 180 struct uasm_label { 181 u32 *addr; 182 int lab; 183 }; 184 185 void uasm_build_label(struct uasm_label **lab, u32 *addr, 186 int lid); 187 #ifdef CONFIG_64BIT 188 int uasm_in_compat_space_p(long addr); 189 #endif 190 int uasm_rel_hi(long val); 191 int uasm_rel_lo(long val); 192 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); 193 void UASM_i_LA(u32 **buf, unsigned int rs, long addr); 194 195 #define UASM_L_LA(lb) \ 196 static inline void uasm_l##lb(struct uasm_label **lab, u32 *addr) \ 197 { \ 198 uasm_build_label(lab, addr, label##lb); \ 199 } 200 201 /* convenience macros for instructions */ 202 #ifdef CONFIG_64BIT 203 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) 204 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) 205 # define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) 206 # define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) 207 # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd) 208 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) 209 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) 210 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh) 211 # define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) 212 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) 213 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) 214 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) 215 # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh) 216 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) 217 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) 218 #else 219 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) 220 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) 221 # define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) 222 # define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) 223 # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd) 224 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) 225 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) 226 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh) 227 # define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) 228 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) 229 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) 230 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 231 # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 232 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) 233 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) 234 #endif 235 236 #define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) 237 #define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) 238 #define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) 239 #define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) 240 #define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) 241 #define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) 242 #define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) 243 #define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) 244 #define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) 245 246 static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1, 247 unsigned int a2, unsigned int a3) 248 { 249 if (a3 < 32) 250 uasm_i_drotr(p, a1, a2, a3); 251 else 252 uasm_i_drotr32(p, a1, a2, a3 - 32); 253 } 254 255 static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1, 256 unsigned int a2, unsigned int a3) 257 { 258 if (a3 < 32) 259 uasm_i_dsll(p, a1, a2, a3); 260 else 261 uasm_i_dsll32(p, a1, a2, a3 - 32); 262 } 263 264 static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1, 265 unsigned int a2, unsigned int a3) 266 { 267 if (a3 < 32) 268 uasm_i_dsrl(p, a1, a2, a3); 269 else 270 uasm_i_dsrl32(p, a1, a2, a3 - 32); 271 } 272 273 static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1, 274 unsigned int a2, unsigned int a3) 275 { 276 if (a3 < 32) 277 uasm_i_dsra(p, a1, a2, a3); 278 else 279 uasm_i_dsra32(p, a1, a2, a3 - 32); 280 } 281 282 /* Handle relocations. */ 283 struct uasm_reloc { 284 u32 *addr; 285 unsigned int type; 286 int lab; 287 }; 288 289 /* This is zero so we can use zeroed label arrays. */ 290 #define UASM_LABEL_INVALID 0 291 292 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); 293 void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); 294 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); 295 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); 296 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, 297 u32 *first, u32 *end, u32 *target); 298 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); 299 300 /* Convenience functions for labeled branches. */ 301 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); 302 void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg, 303 unsigned int bit, int lid); 304 void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg, 305 unsigned int bit, int lid); 306 void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1, 307 unsigned int r2, int lid); 308 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 309 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 310 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 311 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 312 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 313 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, 314 unsigned int reg2, int lid); 315 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 316 317 #endif /* __ASM_UASM_H */ 318